Went to this one today.
customer reported fan was getting noisy.
found fan runs on high speed continually. I think as it's permanent pilot it should run at low speed then ramp up when a demand is on.
Hot water and heating working fine but fan running on full speed constantly.
i am guessing at PCb but is there anything else that can cause this?
customer reported fan was getting noisy.
found fan runs on high speed continually. I think as it's permanent pilot it should run at low speed then ramp up when a demand is on.
Hot water and heating working fine but fan running on full speed constantly.
i am guessing at PCb but is there anything else that can cause this?